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सिद्ध कीजिए कि |{:(a , a^(2) , b + c), (...

सिद्ध कीजिए कि `|{:(a , a^(2) , b + c), (b , b^(2), c + a),(c , c^(2) , a + b):}| = (a + b +c)(a - b) (b - c) (c -a ) `

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